1. Specifications
Figure 1: Dimension of board
2. Notations
Input:
Output:
Indicators:
3. Operating principle
Figure 2: Operating principle of relay module
When control signal is low level, diode in U1 enables, U1 operates. U1 allows the current to pass through, the transistor Q1 is in saturation mode, and relay switches its status from “NC” to “NO”. LED LD1 turns on.
When control signal is high level, diode in U1 disables, U1 doesn’t operate. U1 permits the current to pass through, the transistor Q1 is in cutoff mode, and relay is in normal mode “NO”. LED LD1 turns off.
4. 3D model
You can see 3D model at: https://youtu.be/wD1_TaqAD2k
No | Designator | Comment | Description | Footprint | Quantity | Manufacturer 1 | Manufacturer Part Number 1 | Link |
---|---|---|---|---|---|---|---|---|
1 | C1, C2 | 0.1uF | 0.1uF 50V | C0805 | 2 | KEMET | C0805C104K5RACTU | Amazon: 100pcs Monolithic Ceramic 50V Capacitor Radial Low E... |
2 | CN1 | KF301-3 | CONN KF301 3POS 5.0MM | CNN 3x1 KF301 | 1 | Amazon: X-DREE 50Pcs KF301-2P/3P 14-22AWG AC250V 16A 2P 5mm ... | ||
3 | D1 | SS34 | 3A 40V SS34 SMA | SMA | 1 | Multicomp | SS34A | Amazon: 100pcs 1N5822 SMA diode ss34 SMD do-214ac IN5822 Sch... |
4 | J1 | Jumper 5x1 | 5 Positions Header, Breakaway Connector 0.100" (2.54mm) Through Hole Gold | JP 5x1 MALE | 1 | Sullins | PRPC040SFAN-RC | Amazon: Honbay 40pcs 40 Pin Single Row Male and Female Pin H... |
5 | LD1 | BLUE | LED 0805 BLUE | LED0805 BLUE | 1 | Kingbright | APT2012QBC/D | Amazon: 270pcs SMD SMT LED Bulbs Super Bright LED Blue, Red,... |
6 | LD2 | RED | LED 0805 RED | LED0805 RED | 1 | Rohm | SML-210LTT86 | Amazon: 270pcs SMD SMT LED Bulbs Super Bright LED Blue, Red,... |
7 | Q1 | C1815 | NPN 600mW, ECB | SOT23-3 | 1 | Microchip | MIC1815-20UY-TR | Amazon: Aexit 50Pcs C1815 Transistors SOT-23 Plastic-Encapsu... |
8 | R1, R2 | 1K | 1 kOhms ±1% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film | R0805 | 2 | Yageo, Vishay Dale | RC0805FR-071KL, CRCW08051K00FKEA | Amazon: uxcell 1K Ohm 1/8Watt PCB Surface Mounting SMD SMT C... |
9 | R3 | 5K6 | 5.6 kOhms ±1% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film | R0805 | 1 | Vishay | CRCW08055K60FKEA | https://amzn.to/3aRb4br |
10 | RL1 | 12V_10A | 5-Pin Relay | Relay SPDT | 1 | Amazon: Electrical Buddy JQC 3F 73T DC 5V Coil 5 Pins Mini S... | ||
11 | U1 | PC817 | OptoPC817_5V_5mA PITCH | DIP4 | 1 | Everlight | EL817-G | https://amzn.to/2TL1uRH |
Name | Size | # Downloads |
---|---|---|
Relay Module.GBL | 2.35 kB | 95 |
Relay Module.GBS | 2.33 kB | 87 |
Relay Module.GKO | 543 B | 102 |
Relay Module.GM1 | 162 B | 90 |
Relay Module.GTL | 51.12 kB | 106 |
Relay Module.GTO | 145.94 kB | 94 |
Relay Module.GTP | 3.34 kB | 97 |
Relay Module.GTS | 5.51 kB | 92 |
Relay Module.TXT | 401 B | 72 |
Status Report.Txt | 300 B | 65 |